Projection display apparatus

Abstract

The projection display apparatus comprises: an image control unit configured to control a second viewpoint image of the plurality of viewpoint images to suppress crosstalk of a first viewpoint image. The image control unit controls a suppression amount of crosstalk according to a position on the projection plane.

1 . A projection display apparatus comprising:
 a light source,   an imager configured to modulate light emitted from the light source, and   a projection unit configured to project light modulated by the imager onto a projection plane, wherein   the projection display apparatus displays a stereoscopic image including a plurality of viewpoint images,   the projection display apparatus comprising:   an image control unit configured to control a second viewpoint image of the plurality of viewpoint images to suppress crosstalk of a first viewpoint image, wherein   the image control unit controls a suppression amount of crosstalk according to a position on the projection plane.   
     
     
         2 . The projection display apparatus according to  claim 1 , wherein the imager includes a display element including a plurality of micromirrors. 
     
     
         3 . The projection display apparatus according to  claim 1 , wherein the image control unit switches a control mode for suppressing crosstalk between a subtraction processing mode and an addition processing mode according to an image input signal constituting the stereoscopic image. 
     
     
         4 . The projection display apparatus according to  claim 3 , wherein, the image control unit subtracts an amount of crosstalk corresponding to the first viewpoint image from an image input signal constituting the second viewpoint image, in the subtraction processing mode. 
     
     
         5 . The projection display apparatus according to  claim 3 , wherein, the image control unit adds an amount of inverted crosstalk corresponding to an inverted image of the first viewpoint image to an image input signal constituting the second viewpoint image, in the addition processing mode. 
     
     
         6 . The projection display apparatus according to  claim 4 , wherein the image control unit adjusts the image input signal constituting the second viewpoint image to alleviate a change in contrast of an image region, where the contrast suddenly changes, in the first viewpoint image. 
     
     
         7 . The projection display apparatus according to  claim 5 , wherein the image control unit adjusts the image input signal constituting the second viewpoint image to alleviate a change in contrast of an image region, where the contrast suddenly changes, in the inverted image of the first viewpoint image. 
     
     
         8 . The projection display apparatus according to  claim 6 , wherein the image control unit controls a process of alleviating the change in the contrast according to a position in an image. 
     
     
         9 . The projection display apparatus according to  claim 7 , wherein the image control unit controls a process of alleviating the change in the contrast according to a position in an image. 
     
     
         10 . The projection display apparatus according to  claim 6 , wherein the image control unit controls a size or a shape of an alleviation region, where the change in the contrast is to be alleviated, according to a position in an image. 
     
     
         11 . The projection display apparatus according to  claim 7 , wherein the image control unit controls a size or a shape of an alleviation region, where the change in the contrast is to be alleviated, according to a position in an image. 
     
     
         12 . The projection display apparatus according to  claim 1 , comprising:
 a polarizing plate configured to align a polarization of the light emitted from the light source; and   a liquid crystal element configured to switch the polarized light of the light emitted from the polarizing plate between a first polarized light and a second polarized light, wherein   the polarizing plate is configured to be moved out of an optical path of the light, which is emitted from the light source, up to a position in which the polarizing plate does not overlap the optical path of the light emitted from the light source.   
     
     
         13 . The projection display apparatus according to  claim 12 , comprising:
 a plate-like optical element having a polarizing region serving as the polarizing plate and a transparent region for adjusting a length of the optical path of the light emitted from the light source, wherein   the plate-like optical element is configured to be moved to a position in which the polarizing region does not overlap the optical path of the light emitted from the light source, and   the transparent region overlaps the optical path of the light emitted from the light source, when the plate-like optical element is moved to the position in which the polarizing region does not overlap the optical path of the light emitted from the light source.   
     
     
         14 . The projection display apparatus according to  claim 1 , comprising:
 a control unit configured to sequentially perform a setting guidance process corresponding to a 3D mode selected from a plurality of 3D modes provided as 3D modes in which the stereoscopic image is displayed, wherein   the control unit outputs guidance information indicating a procedure for setting the selected 3D mode, and displays the stereoscopic image according to the selected 3D mode, in the setting guidance process.   
     
     
         15 . The projection display apparatus according to  claim 14 , wherein the control unit specifies the 3D mode in which the stereoscopic image is displayed, and initially performs the setting guidance process corresponding to the specified 3D mode. 
     
     
         16 . The projection display apparatus according to  claim 14 , wherein the plurality of 3D modes include two or more 3D modes of a polarized glasses system using polarized glasses, a shutter glasses system (1) for switching opening and closing of right and left shutters by a synchronization signal reflected by a screen, a shutter glasses system (2) for switching the opening and closing of the right and left shutters by a synchronization signal output from the projection display apparatus, and a shutter glasses system (3) for switching the opening and closing of the right and left shutters by a synchronization signal output from an external apparatus connected to the projection display apparatus. 
     
     
         17 . A projection display apparatus having a plurality of 3D modes as 3D modes in which a stereoscopic image is displayed, the plurality of 3D modes including at least a 3D mode of a polarized glasses system using polarized glasses, wherein
 the projection display apparatus turns on a crosstalk canceller, when the 3D mode of the polarized glasses system is selected.   
     
     
         18 . The projection display apparatus according to  claim 17 , wherein, a polarizing plate configured to align a polarization of image light of the stereoscopic image is inserted, when the 3D mode of the polarized glasses system is selected. 
     
     
         19 . The projection display apparatus according to  claim 17 , wherein the 3D mode is switched to the 3D mode of the polarized glasses system according to insertion of the polarizing plate configured to align the polarization of the image light of the stereoscopic image.